outer surface material: zirconia ceramics

main material: stainless steel

storage capacity: It is recommended to connect app and synchronize data everyday. The data will store for up to 7 days and it depends on the type and

frequency of use. product weight: 5.5 gram

battery capacity: 18 mah lithium polymer batteries

battery time: 3-5 days, depending on the frequency of use

charging ways: use the charging cable provided, USB rated 5V

charging time: 45 minutes

light emitting sensor: LED of all visible colors, safe and friendly for users

connection method: Low-power Bluetooth 5.0

software program update: updates through software applications

software compatibility: the AppStore, Google Play

waterproof level: IPX8

APP download Search for "SoPlus Ring" on Google Play or the App Store to download the APP Note: Please allow APP to obtain Bluetooth connection permission and location permission Wear it correctly Please put the detection sensor (see the inner ring) in close contact with the finger skin in order to obtain the accurate data.